I think you're trying to find something [ARRL being anti-CW] that is simply not there. Here in the USA one of the first things we learn is that CW--A1A--is permitted everywhere on every allocated amateur radio frequency except for the 60m channels where it must be conducted in a very precise manner (as noted on the above linked band plan page). As an extension of that knowledge all of the other modes are layered on top of A1A. I'll agree that on the band plan page things could be presented a bit better for the other bands as with 160m where CW is noted from 1800 to 2000 kHz, but doing so may have been considered redundant and excessive for an already large Web page. Again, this is off-topic and doesn't change the fact that CW operators should support the 80m correction as it provides much needed relief for all 80m modes.